It is caused by a defect in the gene that codes for Btk
It is an enzyme vital for the maturation of B cells
polydactylly
To make a definitive diagnosis, the child's X chromosome is analyzed for defects in the Btk gene. Similar analysis can be used for prenatal diagnosis or to detect carriers of the defective gene
supernumery digit
Yes
Bruton's agammaglobulinemia
X-linked agammaglobulinemia
Agammaglobulinemia is a condition in which gammaglobulins are absent from the blood, or only exist in low concentrations.
Swiss-type agammaglobulinemia. This was the first type of SCID discovered, in Switzerland in the 1950s.
X-linked agammaglobulinemia
Normal
It is present at birth
It is present at birth
Swiss-type agammaglobulinemia. This was the first type of SCID discovered, in Switzerland in the 1950s. (SCID) is the most serious human immunodeficiency disorder(s).
It is caused by a defect in the gene that codes for Btk
It is caused by a defect in the gene that codes for Btk